0.7.10 has been released and is compatible with 0.7.x. Instead
of pinning to 0.7.9, simply pin to 0.7.x to avoid SQLAlchemy 0.8
Unfortuantely '<0.8' matches '0.8.0b2', which is what we don't want.
Therefore pinning it to '<=0.7.99' instead.
This matches a corresponding change in openstack/requirements
Fixes: Bug #1153983
Change-Id: Icf680a933c6092cce52706fd9616a0d208164d1e
netaddr
python-quantumclient>=2.2.0,<3.0.0
pyudev
-sqlalchemy==0.7.9
+sqlalchemy>=0.7.8,<=0.7.99
WebOb>=1.2
python-keystoneclient>=0.2.0
alembic>=0.4.1